Update changelog for 3.8.2 release

CHANGES.rst

@@ -116,26 +116,14 @@ Specviz2d
 Other Changes and Additions
 ---------------------------
 
-3.8.2 (unreleased)
+3.8.3 (unreleased)
 ==================
 
 Bug Fixes
 ---------
 
-* Fix app top-bar alignment in popouts and when embedded in websites. [#2648]
-
-* Viewer data-menu is no-longer synced between different instances of the app to avoid recursion
-  between click events. [#2670]
-
-* Fix data-menu cutoff in smaller viewers, ensuring full visibility regardless of viewer dimensions. [#2630, #2707]
-
 Cubeviz
 ^^^^^^^
-- Fixes Spectral Extraction's assumptions of one data per viewer, and flux data only in
-  flux-viewer/uncertainty data only in uncert-viewer. [#2646]
-
-- Fixed a bug where cube model fitting could fail (endless spinner) if input cube
-  has invalid 3D WCS. [#2685]
 
 Imviz
 ^^^^^
@@ -149,6 +137,27 @@ Specviz
 Specviz2d
 ^^^^^^^^^
 
+3.8.2 (2024-02-23)
+==================
+
+Bug Fixes
+---------
+
+* Fix app top-bar alignment in popouts and when embedded in websites. [#2648]
+
+* Viewer data-menu is no-longer synced between different instances of the app to avoid recursion
+  between click events. [#2670]
+
+* Fix data-menu cutoff in smaller viewers, ensuring full visibility regardless of viewer dimensions. [#2630, #2707]
+
+Cubeviz
+^^^^^^^
+- Fixes Spectral Extraction's assumptions of one data per viewer, and flux data only in
+  flux-viewer/uncertainty data only in uncert-viewer. [#2646]
+
+- Fixed a bug where cube model fitting could fail (endless spinner) if input cube
+  has invalid 3D WCS. [#2685]
+
 3.8.1 (2023-12-21)
 ==================